package com.itheima.service.impl;


import com.alibaba.dubbo.config.annotation.Service;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.itheima.constant.MessageConstant;
import com.itheima.entity.PageResult;
import com.itheima.entity.QueryPageBean;
import com.itheima.entity.Result;
import com.itheima.mapper.MemberMapper;
import com.itheima.mapper.OrderMapper;
import com.itheima.mapper.OrderSettingMapper;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.pojo.vo.MemberVO;
import com.itheima.pojo.vo.OrderVO;
import com.itheima.service.OrderService;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService{


    @Autowired
    OrderSettingMapper orderSettingMapper;

    @Autowired
    MemberMapper memberMapper;

    @Autowired
    OrderMapper orderMapper;

    public Result order(Map map) throws Exception {
//        1、检查用户所选择的预约日期是否已经提前进行了预约设置，如果没有设置则无法进行 预约
        String orderDate = (String) map.get("orderDate");
        OrderSetting orderSetting=orderSettingMapper.findByOrderDate(DateUtils.parseString2Date(orderDate));
        if (orderSetting==null){
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
//        2、检查用户所选择的预约日期是否已经约满，如果已经约满则无法预约
        int number = orderSetting.getNumber();
        int reservations = orderSetting.getReservations();
        if (reservations>=number){
            return new Result(false,MessageConstant.ORDER_FULL);
        }
//        3、检查用户是否重复预约（同一个用户在同一天预约了同一个套餐），如果是重复预约 则无法完成再次预约

        MemberVO member = memberMapper.findByTelephone((String) map.get("telephone"));

        if (member!=null){
            Integer id = member.getId();
            Date date = DateUtils.parseString2Date((String) map.get("orderDate"));
            String setmealId = (String) map.get("setmealId");

            Order order = new Order(id, date, Integer.parseInt(setmealId));
            List<Order> list = orderMapper.findByCondition(order);
            if (list!=null&&list.size()>0){
                return new Result(false,MessageConstant.HAS_ORDERED);
            }
        }else {
//        4、检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注 册并进行预约
           member=new MemberVO();
            member.setName((String) map.get("name"));
            member.setPhoneNumber((String) map.get("telephone"));
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());
            memberMapper.add(member);
        }
//        5、预约成功，更新当日的已预约人数
        //保存预约信息到预约表
        Order order = new Order(member.getId(), DateUtils.parseString2Date(orderDate), (String)map.get("orderType"), Order.ORDERSTATUS_NO, Integer.parseInt((String) map.get("setmealId")),(String)map.get("orderAddress"));
        orderMapper.add(order);
        return new Result(true,MessageConstant.ORDER_SUCCESS,order.getId());
    }

    @Override
    public Map findById(int id) {
        Map map = orderMapper.findById4Detail(id);
        return map;
    }

    @Override
    public PageResult findByPage(QueryPageBean queryPageBean) {
        PageHelper.startPage(queryPageBean.getCurrentPage(),queryPageBean.getPageSize());
        Page<OrderVO> page=orderMapper.queryByCondition(queryPageBean.getQueryString());

        return new PageResult(page.getTotal(),page.getResult());
    }

    @Override
    public void updateOrderStatusById(int id) {
        orderMapper.updateOrderStatusById(id);
    }

    @Override
    public void updateNotOrderStatusById(int id) {
        orderMapper.updateNotOrderStatusById(id);
    }

    @Override
    public List<Map<String, Object>> getOrderReportData() {

        Map<String, Object> map = new HashMap<>();
        //获取日期,可预约人数,已预约人数
        List<Map<String, Object>> list= orderMapper.findAbleNumbers();

        return list;
    }


}
